Road Stream Crossing Site GTBAY_KC018

Boardman River Watershed, Kids Creek
6th Street
Traverse City, Grand Traverse County
Information collected by:
Site Location
GPS Coordinates: 44.76158758 , -85.63624173
T27N R11W Sec 04
Owned by Private
Fish Passability 0.9
Total Erosion: 0.3804 tons/year
Severity: Moderate
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Headwall
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Sand
General Conditions: Fair
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
8.5 ft.
66 ft.
4 ft.
Concrete
2
7.5 ft.
66 ft.
4 ft.
Concrete
Structure Interior: smooth
Dimensions of Structure: Length 66 ft. , Width 8 ft. , Height 4 ft.
Percentage Plugged: In Pipe: 1% to 25%
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.6 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments
Water depth and velocity measurements recorded for culvert #1
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 15 ft.
Wetted Width: 13 ft.
Water Velocity: 0.8 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved Town Road
Road Condition: Good
Road Width at Culvert: 32 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: Vertical
Downstream
Fill Depth: 1 ft.
Slope: Vertical
Approaches
Left Approach
Length: 50 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0026 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.64
Erosion: 0.3385 tons/year
Erosion Information
Total Erosion at Crossing: 0.3804 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Embankment
7.3 ft.
0.9 ft.
0.8 ft.
yes
Sandy Loam
0.0392
Summary Information
Fish Passability 0.9
Erosion is an area of concern for this site.